includes();
/* adding stylesheets and scripts of plugin */
add_action('admin_enqueue_scripts', array($this, 'ga4wp_enqueue_scripts'));
/* adding plugin link in wp-menu */
add_action('admin_menu', array($this, 'add_menu_pages'));
/* add Review Request */
add_action('admin_notices', array($this, 'add_review_request'));
/* hide review request using ajax */
add_action('wp_ajax_ga4wp_hide_review_notice', array($this, 'hide_review_request'));
add_action('wp_ajax_nopriv_ga4wp_hide_review_notice', array($this, 'hide_review_request'));
/* adding links to plugin on pluings page*/
add_filter('plugin_action_links_' . GA4WP_BASENAME, array($this, 'settings_link'));
add_action('wp_footer', array($this, 'ga4wp_add_this_script_footer'));
add_action('admin_footer', array($this, 'ga4wp_add_this_script_footer'));
}
/* add review request in plugin */
public function add_review_request()
{
$review_request_time = get_option('ga4wp_review_request_time');
if ($review_request_time) {
$current_time = time();
if ($current_time > $review_request_time) {
echo '';
}
} else {
update_option('ga4wp_review_request_time', strtotime(date('d-m-Y H:i:s') . "+ 48 hours"));
}
}
/* hide review request */
public function hide_review_request()
{
$nonce = $_REQUEST['security'];
if (wp_verify_nonce($nonce, 'maybelater-nonce')) {
update_option('ga4wp_review_request_time', strtotime(date('d-m-Y H:i:s') . "+ 48 hours"));
}
if (wp_verify_nonce($nonce, 'alreadydid-nonce')) {
update_option('ga4wp_review_request_time', strtotime(date('d-m-Y H:i:s') . "+ 720 hours"));
}
}
/* adding analytics code to front for triggering events */
public function ga4wp_add_this_script_footer()
{
$protocol = ((!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off') || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
$url = $protocol . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
$url = strtok($url, '?');
if (isset($_SERVER['HTTP_REFERER'])) {
$old_url = $_SERVER['HTTP_REFERER'];
} else {
$old_url = '';
}
if (is_user_logged_in()) {
$user_id = get_current_user_id();
$transient_id = 'ga4wp_analytics_code_' . $user_id;
$user_cid = $this->get_cid();
$transient_id_2 = 'ga4wp_analytics_code_' . $user_cid;
$ana_code_2 = get_transient($transient_id_2);
} else {
$user_cid = $this->get_cid();
$transient_id = 'ga4wp_analytics_code_' . $user_cid;
}
$ana_code = get_transient($transient_id);
if (!empty($ana_code_2)) {
$ana_code .= $ana_code_2;
}
if (!empty($ana_code)) {
if (class_exists('WooCommerce')) {
if (is_cart() || is_checkout()) {
if ($url !== $old_url) {
echo "";
delete_transient($transient_id);
if (isset($transient_id_2)) {
delete_transient($transient_id_2);
}
}
} else {
echo "";
delete_transient($transient_id);
if (isset($transient_id_2)) {
delete_transient($transient_id_2);
}
}
} else {
echo "";
delete_transient($transient_id);
if (isset($transient_id_2)) {
delete_transient($transient_id_2);
}
}
}
}
/* getting cid for event api calls */
private function get_cid($generate_cid = false)
{
$cid = '';
/* get client identity via GA cookie and only accepting value if it validated */
if (isset($_COOKIE['_ga'])) {
$ga_cookie_data = filter_var($_COOKIE['_ga'], FILTER_SANITIZE_FULL_SPECIAL_CHARS);
$data = explode('.', $ga_cookie_data);
if (is_array($data) && count($data) > 3) {
if (strlen($data[2]) > 3 && strlen($data[3]) > 3) {
$cid = $data[2] . '.' . $data[3];
}
}
}
/* generate custom cid if cookie is not set */
if (empty($cid)) {
$custom_cid = $generate_cid || (empty($cid) && is_user_logged_in());
if ($custom_cid) {
$bytes = random_bytes(16);
$bytes[6] = chr(ord($bytes[6]) & 0x0f | 0x40); // set version to 0100
$bytes[8] = chr(ord($bytes[8]) & 0x3f | 0x80); // set bits 6-7 to 10
return vsprintf('%s%s-%s-%s-%s-%s%s%s', str_split(bin2hex($bytes), 4));
}
} else {
return $cid;
}
}
/* Adding plugin menu to Admin menu of WP */
public function add_menu_pages()
{
$title = __('GA4WP', 'ga-for-wp-text');
$this->pages['ga4wp'] = new GA4WP_Admin_View($title, 'ga4wp_pro_plugin_options');
}
/* enqueue scripts */
public function ga4wp_enqueue_scripts()
{
$screen = get_current_screen();
$this->register_scripts();
if (isset($_GET['page']) && ($_GET['page'] == 'ga4wp_pro_plugin_options')) {
wp_enqueue_script('ga4wp_material_js');
wp_enqueue_style('ga4wp_material_css');
}
if ((isset($_GET['page']) && ($_GET['page'] == 'ga4wp_pro_plugin_options'))||($screen -> id == "dashboard")) {
wp_enqueue_style('ga4wp_icons');
wp_enqueue_style('ga4wp_css');
wp_enqueue_script('ga4wp_chart_js');
}
wp_enqueue_script('ga4wp_ajax_js');
}
/* registering scripts */
private function register_scripts()
{
wp_register_style('ga4wp_material_css', GA4WP_URL . 'assests/css/materialize.min.css', false, null);
wp_register_style('ga4wp_css', GA4WP_URL . 'assests/css/ga4wp.css', false, null);
wp_register_style('ga4wp_icons', 'https://fonts.googleapis.com/icon?family=Material+Icons');
wp_register_script('ga4wp_material_js', GA4WP_URL . 'assests/js/materialize.min.js', array('jquery'), null, true);
wp_register_script('ga4wp_chart_js', GA4WP_URL . 'assests/js/chart.js', null, true);
wp_register_script('ga4wp_ajax_js', GA4WP_URL . 'assests/js/ga4wp-ajax.js', array('jquery'), null, true);
wp_localize_script('ga4wp_ajax_js', 'ajax_object', array('ajax_url' => admin_url('admin-ajax.php'), 'maybelater_nonce' => wp_create_nonce('maybelater-nonce'), 'alreadydid_nonce' => wp_create_nonce('alreadydid-nonce'), ));
}
/* Adding Settings link on plugins page */
public function settings_link($links, $url_only = false, $networkwide = false)
{
$settings_page = is_multisite() && is_network_admin() ? network_admin_url('admin.php?page=ga4wp_pro_plugin_options') : menu_page_url('ga4wp_pro_plugin_options', false);
/* If networkwide setting url is needed. */
$settings_page = $url_only && $networkwide && is_multisite() ? network_admin_url('admin.php?page=ga4wp_pro_plugin_options') : $settings_page;
$settings = '' . __('Settings', 'ga-for-wp-text') . '';
/* Return only settings page link. */
if ($url_only) {
return $settings_page;
}
if (!empty($links)) {
array_unshift($links, $settings);
} else {
$links = array($settings);
}
return $links;
}
/* Adding tab views to plugin */
private function includes()
{
/* main view class */
include_once GA4WP_DIR . 'inc/abstract-ga4wp-view.php';
include_once GA4WP_DIR . 'inc/class-ga4wp-admin-view.php';
}
} 
' . __('Hi there! You\'ve been using GA4WP: Google Analytics for Wordpress Plugin. We hope it\'s been helpful. Would you mind rating it 5-stars to help spread the word?', 'ga-for-wp-text') . '